• Title/Summary/Keyword: alimentary track

Search Result 3, Processing Time 0.019 seconds

An immunohistochemical study of endocrine cells in the alimentary tract and pancreas of the toad, Bufo bufo gargarizans Cantor (두꺼비(Bufo bufo gargarizans cantor)에서 위장췌내분비세포의 면역조직화학적 연구)

  • Lee, Hyeung-sik;Ku, Sae-kwang;Park, Ki-dae;Lee, Jae-hyun
    • Korean Journal of Veterinary Research
    • /
    • v.40 no.1
    • /
    • pp.17-26
    • /
    • 2000
  • The regional distribution and relative frequencies of endocrine cells were studied immunohistochemically (PAP methods) in the alimentary tract and pancreas of the toad, Bufo bufo gargarizans Cantor using specific antisera against bovine Sp-1/chromogranin (BCG), serotonin, bombesin, gastrin, substance P (SP), somatostatin, insulin, glucagon, pancreatic polypeptide (PP), vasoactive intestinal polypeptide (VIP) and secretin. Nine kinds of endocrine cells were identified in this study. Spherical or spindleshaped immunoreactive (IR) cells were located in the gastric glands of stomach regions, in the basal portion of the epithelium of intestinal tract or esophagus, and in the exocrine or pancreatic islets with variable frequencies. In the alimentary tract, BCG-IR cells were found in the fundus and pylorus with rare and a few frequencies, respectively. Serotonin-IR cells were demonstrated in the whole alimentary tract including the esophagus. Bombesin- and SP-IR cells were restricted to the stomach regions and gastrin-IR cells were restricted to the pylorus. Somatostatin-IR cells were detected throughout the whole alimentary tract except for the large intestine, However, insulin-, glucagon-, PP-, VIP- and secretin-IR cells were not detected in the alimentary tract. In the pancreas of toad, the distribution and relative frequency of endocrine cells were similar to those of other mammals. Insulin-IR cells were located in the central portion of the pancreatic islets and interspaces of exocrine portions, and glucagon-, somatostatin- and PP-IR cells were detected in the marginal regions of the pancreatic islets and interspaces of exocrine. However, other IR cells were not found in the pancreas. In conclusion, the regional distribution and relative frequency of the endocrine cells in the alimentary tract and pancreas of the toad were similar to other anuran species but some differences which might be caused by feeding habits and species specification were also observed.

  • PDF

Studies of the effect of dietary lactobacilli on the intestinal flora and body weight gains in suckling piglets (유산간균 Lactobacilli 경구투여에 의한 자돈의 장내균총형성 및 증체에 미치는 영향)

  • 윤성식
    • The Korean Journal of Food And Nutrition
    • /
    • v.1 no.1
    • /
    • pp.33-40
    • /
    • 1988
  • A Study was conducted to investigate the effect of feeding Lactobacillus casei YS on the growing performance and gastrointestinal flora of the suckling piglets, which were delivered from 2 heads of three-way crossbred(Landrace$\times$Large White$\times$Duroc) pigs, for 4 weeks. The results from the present study was summarized as follows. Average body weight gains of feeding group was slightly better than that of control group and diarrhea was prevented by successive 7 days feeding. Population levels of lactic acid bacteria were maintained about 107 colony forming unit(cfu) per gram of the contents in both feeding and control group at upper parts of small intestine. In this part, coliform count was greatly reduced in (ceding group but not in control group. pH values of the intestinal contents were gradually decreased especially at the upper part of alimentary track of feeding group. Among lactic acid bacteria, L. salivarius, L. cases and L. fermentum were found most predominant strains in feeding group, Wheareas L. salivarius, L. acidophilus and L. cunts in control group. In the other hand, Escherichia coli recovered from scouring pigs were resistant to the drug such as streptomycin, ampicillin and sensitive to gentamycin and neomycin in vitro test.

  • PDF

Composite Graft Reconstruction of Esophagus for Double Primary Cancer of Larynx & Esophagus (후두암과 식도암의 이증원발성 종양에서의 합이식술을 이용한 식도 재건술)

  • I Hoseok;Song Dong Seop;Kim Su Wan;Shim Young Mog
    • Journal of Chest Surgery
    • /
    • v.38 no.11 s.256
    • /
    • pp.791-794
    • /
    • 2005
  • After esophagectomy, the stomach is used most commonly for the method of reconstruction. However, the stomach may not be large enough to be reached the site of anastomosis when it is above the pharynx. We experienced a double primary cancer of the lower esophagus and the larynx. Total laryngectomy and total esophagectomy were done with cervical pharyngojejunogastrostomy for reconstruction. Free jejunal graft is interposed between the oropharyngeal stump and the stomach is pulled-up. We could restore the alimentary track without tension at the anastomotic site and obtain sufficient blood supply.